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Table 10. Lon -term Reduction of Cr(VI <br /> Test Cr(VI) remaining, Cr(VI) Reduced, <br /> fig/L Vg/kg soil <br /> Pre-Treatment Capacity(1 1 soil liq <br /> Ratio, Untreated GW and Soil) <br /> 0 days 560 <br /> 3 days 410 150 <br /> 8 days 110 450 <br /> 14 days 200 360 <br /> 21 days 110 450 <br /> 27 days < 10 > 550 <br /> 41 days < 10 > 550 <br /> Ozone (1 4 soil liquid ratio) <br /> 0 days 70 n a <br /> 7 days 10 300 <br /> 15 days < 10 > 300 <br /> Peroxone, Spiked with 750 M/L <br /> Cr(Vl)(1 4 soil liquid ratio) <br /> 0 days 750 n a <br /> 4 days 480 1,350 <br /> 16 days 600 750 <br /> 31 days 230 2,600 <br /> 73 days 480 1,350 <br /> 140 days 350 2,000 <br /> 154 days 380 1,850 <br /> Peroxone, Spiked with--570 µg/L <br /> Cr(Vl)(1 1 soil liquid ratio) <br /> 0 days 540 n a <br /> 3 days < 10 > 530 <br /> 8 days < 10 > 530 <br /> 14 days < 10 > 530 <br /> 21 days < 10 > 530 <br /> 27 days < 10 > 530 <br /> 41 days < 10 > 530 <br /> *n a =not applicable <br /> The SOD was calculated for all data points and was found to range from 400 to 700 mg <br /> 03/kg field moist soil, which is somewhat lower than the amount expected (830 mg/kg <br /> soil) based on the concentration of 13TEX in untreated COMP7 soil and the <br /> . stoichiometric doses given in Table 1 The Iower observed value is most likely due to <br /> volatilization of hydrocarbons associated with sample handling during set-up of the SOD <br /> PRIMA Environmental 20 Eva] of Peroxone <br /> June 1,2005 ETIC-Exxon#3942 <br />